Convert.com vs Optimizely

Side-by-side from the Top 11 ranking of The 11 Best A/B Testing Tools (2026). Last verified June 13, 2026.

The short answer

Optimizely ranks higher on Top 11 (#1 vs #4) for Growth teams running experiments. The enterprise standard for its powerful stats engine and full-stack experimentation features.

At a glance

Convert.comOptimizely
Top 11 rank#4 / The 11 Best A/B Testing Tools (2026)#1 / The 11 Best A/B Testing Tools (2026)
Score (out of 9.4)8.59.2
Best forFast, privacy-first testingEnterprise-scale experimentation
Pricing$$$ ($199 to $1,999/mo)$$$$$ (Custom enterprise plans)
HQWalnut, USANew York, USA
Founded20092009

Convert.com

A privacy-focused tool with excellent performance and transparent, flexible pricing.

www.convert.com

See full entry in The 11 Best A/B Testing Tools (2026)

Optimizely

The enterprise standard for its powerful stats engine and full-stack experimentation features.

www.optimizely.com

See full entry in The 11 Best A/B Testing Tools (2026)

Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.